package org.csmz.class2333;

public class Example10 {
    public static void main(String[] args){
        UserManager userManager = new UserManager();
        UserManager userManager1 = new UserManager();
        UserManager userManager2 = new UserManager();
        System.out.println("目前已已创建的用户数量为" + UserManager.userNum);
    }
}
